Mann will play Jacob Waller, an aggressive attorney who represents high-profile clients. He will appear in at least three episodes in the upcoming fourth season.

Best known for “Revenge,” Mann played the fan-favorite character Nolan Ross on the ABC soapy drama for all four seasons, until its cancelation this past year. His other credits include “The Bourne Identity,” “The Bourne Supremacy,” “Mad Men” and, most recently, an episode of “The Mysteries of Laura.”

“Ray Donovan” was renewed for a fourth season last summer. The drama stars the Emmy-nominated Liev Schreiber as the best professional fixer in L.A., who’s called in to make the complicated messes of the city’s celebrities, athletes and business moguls go away. The new season is set to premiere sometime this year.